Metal tie for concrete constructions.



E. CHAPMAN.

METAL TIE FOR CONCRETE CONSTRUCTIONS.

APPLICATION FILED FEB 9. 1909 Patented Nov. 30, 1909.

XV //h// avwem-foz (fig 71111212 fltfoznmno ELMER CHAPMAN, 0F ARIEL,PENNSYLVANIA.

METAL TIE FOR CONCRETE CONSTRUCTIONS.

Specification of Letters Patent.

Patented Nov. 30,1909.

Application filed February 9, 1909. Serial No. 476,988.

To all whom 'it may concern:

Be it known that I, ELMER CHAPMAN, a citizen of the United States,residing at Ariel, in the county of Wayne and State of Pennsylvania,have invented certain new and useful Improvements in Metal Ties forConcrete Constructions; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art towh-ich it appertains to make and use thesame.

This invention relates to metal ties for concrete construction.

The object of the invention is to provide an improved form of metal tieadapted to be employed in connection with concrete blocks, heads, windowsills and other concrete structures and with solid double concrete wallsto secure the same in spaced relation to form between themselves anairspace or compartment.

A further object is to provide a tie of the character described whichwill be simple, strong and durable in constructiomefiiclent and reliablein operation and having concrete engagi g means whereby the same may befirmly attached to the concrete structures to which the tie is applied.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts, aswill be more fully .de-' scribed and particularly pointed out in theappended claim.

In the accompanying drawings, Figure 1- is a sectional perspective viewillustrating; the application of the tie; and Fig. 2 is a 1 detailperspective view of the tie on an enlar ed scale.

'Re erring more particularly to the drawings, 1 denotes the tie whichconsists of a central portion, 2, at the opposite ends of whichare'formedlaterally projectingrightangularly disposed arms, 3, on theouter ends of which are formed inwardly turned or projecting retaininglugs, 4.

In the application of the tie to the concrete structures to which thesame is applied, the main portion of the tie, 2, is adapted to serve asa spacing member to hold the sections of. the concrete structure spacedapart to provide an air space whlle the. laterally projecting upper andlower portions or arms, 3, are adapted to be en-. gaged with theopposite sect-ions of the concrete structure by being molded orotherwise engaged therewith and the retaining lugs, 4, on the outer endsof the members, 3, are adapted to serve as detents to firmly hold themembers, 3, into engagement with the concrete sections of the structuresso that the sections will be firmly and rigidly held together in spacedrelation as clearly shown in the drawing.

A tie constructed as herein shown and-described may be employed inconnection with concrete blocks, window sills or heads, solid wallconstructions or any form of concrete work in which the sections areintended to" be spaced apart and held in position. From the foregoingdescription taken in connection with the accompanyin drawings, theconstruction. and operation 0 the invention will be readily understoodwithout requiring a more extended explanation.

Varlous changes in. the form, proportion and the minor, details ofconstructionmay be resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claim.

Having thus described my invention, what I claim as new and desire tosecure by Letters-Patent is:

A- fla't metal tie of uniform thickness adapted to reinforce and holdtwo concrete members in spaced relation to provide an air spacetherebetween, said tie comprising a censigned to fit in position withthe opposite side edges of its body portion fittlng against the inner ormeeting faces of the concrete members and its arms extending into themembers.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

. ELMER CHAPMAN. Witnesses:

WILLIAM P cH, CHARLES E. LU'rz.

